Acid-proof tank or container



Aug. 26 1924.

F. F. BRUCKER ACID lPROOF' TANK OR CONTAINER Filed Dec. 19 19,23

modifications,

Patented Aug. 26, 1924.

,UNiTED STATES PATENT OFFICE.

FERIINAN D F.

BRUCKER, or AKRON, oHIo, Assrenon To THE MILLER RUBBER corri- PANY, OF AKRON, OHIO, A CORPORATION 0F O'HIO.

To all whom t may concern:

and State of Chio,

new and useful Proof Tanks or Containers,

ACID-PROOF TANK 0R CONTAINER.

Application filed December 19, 1923. Serial No. 681,578.

that I, FERDINAND F. of the United States, and in the county of Summit have invented certain Improvements in Acidof which the following is a specification. My present invention relates to improvenicnts iii acid-proof tanks designed hold oi' transport relatively large quantities of acid material,

and aims to provide a lined tank or container adapted for this purpose. which may be produced at a minimum cost,

lining which will will 'be strong and durable in use, having a.

not become ,cracked or separated from the metal walls of the tank, and which will fulfill in every way the requirements of the Interstate Commission.

' Commerce With these and other objects in view, the

invention includes the novel features of construction and arrangement and combination of parts hereinafter described, and particulallY My invention is panying drawing,

defined in the appended claims. illustrated in the accomin which:-

Figure-1 is a view of`a tank partly broken away.

Fig. 2 is an enlarged detail view showing one of the anchor tion of the fabricdevices prior to applicareinforced layer.

Fig. 3 is an enlarged section detail showing the Figs. 4, 5 and 6 modified forms of fabric-reinforced sheet in position.

are detail views showing fastening means, an

Figs. 7 and 8 are similar views of further Referring by reference characters to this drawing, the numeral 1 indicates the metal tank. to which my i plied, and which may any desired form,

I use ficulty has heretofore been experienced in p to metal surfaces in an effecsecuring rubber tive and such sur aces are able area, such as tank walls.

This difliculty I overcome in for the acid-proof vulcanizable rubber compounds. Great ermanent manner,

dif-

especially when smooth'and of considerthe following manner. T o theinner walls (including top,

bottom and sides) as arc wielding) br rality of properly I secure azing or soldering, a pluby welding (such spaced fastening or anchoring devices, such for example as the sheet metal staples 2 having upstanding portions or projections 2, the base of the staple being Welded to the tank surface at the point 2b.

Thereafter I apply to thc metal surface` a sheet of rubber compound having a fabric or reticulated material embedded therein. such shoot heilig indicated as a-wliole at 3, and the reinforcing icticulated material at 3a. For the reinforcing' material I preferably employ a woven wire fabric, though it will be obvious that any reticulated material may be used having openings through which the rubber may pass and form a fiijm bond or union between the two surface laylrs. Silhbwie fabric may be coiivenien y coa e y ayinf on or a) lfinfr to each side thereof a sheetof riiliybr idem-7 pound and passing the composite sheet through acalender which causes the two sheets of rubber to be pressed firmly against the fabric and united to each other through the openings or reticulations. I

This composite or laminated sheet is then applied to the tank wall and pressed thereagainst to cause the prongs of the anchoring or fastening devices to penetrate the sheet, after which they are clenched over as shown in Fig. 3.

A protective sheet is then placed over the foundation or anchoring sheet and pressed firmly into 'contact therewith. The operation having been repeated for all of the walls to be covered, and the edges of the,`

sheets at the corners having been pressed into intimate contact, the tank is then subjected to the proper vulcanizing temperature to cure the foundation and overlying layers into an homogeneous lining which, as will be readily seen, is firmly and permanently bound to the metal Walls of the tank.

Preferably I embody in the rubber compounds, an accelerator which will enable the curing to be effected at a relatively low temerature, and accomplish such cure by filling the tank with water heated to required temperature.

Instead of using a sheet metal staple such as shown in Fig. 2, I may use a wire staple as' shown at 2c, Fig. 4, welded or otherwise fastened at c to the tank wall; or I may use a rivet 2d (Fig. 5) having its head d secured to the tank wall and having a washer d de- Signed to be secured by upsetting the outer end of the rivet. Again, in place of a Washer, I may, if conditions render it more desirable, use a sc reW bolt 2e having its head welded or brazed to the tank Wall (see Fig. 6) and having a nut e threaded on the upper end thereof.

Obviously the foundation and overlying sheetsmay, either or both, be of material Which will vulcanize to any degree of hard-' ness required by the conditions of use, or as deemed most desirable.

`In some cases it ma not be necessary to weld or braze the anc oring devices to the tank, and in this event it might be found more desirable to use some other type of fastcning means such as riveting, as shown at f in Fig. 7, or a screw g tapped into the container wall, as shown in Fig. 8.

Having thus described my invention, what I claim is 1. Anacid-proof tank comprising a metal body having anchoring devices secured to the Walls thereof, a foundation layer of rubber compound having a sheet of reticulated -.material incorporated therewith, which sheet is engaged ,by said anchoring devices, and a pvrotectino` sheet of rubber compound overlying said foundation layer and united thereto by vulcanization.

2. A metal tank having a lWall with anchoring devices secured thereto, a foundation sheet having a reticulated reinforcement therein, engaged by said anchoring devices, and a protective sheet overlyin said foundation sheet, said sheets being o vulcanizable material united by the vulcanizaf tion.

3. In combination, a metal tank, staples having their -heads secured thereto, a founc dation sheet of rubber compound reinforced by reticulated material, said staples being passed through said reticulated material, and overturned or clenched thereon, and a protective sheet of rubber compound overlying said foundation sheet and vulcanized thereto. p 4

4. 'An acid-proof tank comprising a metal body having anchoring devices homogeneously united to the inner'walls thereof, a foundation layer of rubber compound having a sheet of reticulated material incorporated therewith, which sheet is engaged by said anchoring' devices, and a protectin sheet of rubber compound overlying sai foundation layer and united thereto by vulcanization.

5. An acid tank comprising a metal body having anchoring devices secured to the inner faces of the Wallsbthereof, and a foundation sheet of vulcanizable material secured to said Walls by said anchoring devices and a protective sheet of vulcanizable material overlying said foundation sheet and vulcanized thereto.

In testimon whereof I aiiix my si nature.

FE DINAND F. BRUC ER. 

